list1 = [1, 2, 3, 4, 5]
list1.append(6)
list1.remove(3)
list1[1] = 8
a = list1.index(8)
for i in list1:
    print(i)

list2 = [7, 8, 9]
for i in list2:
    list1 += [i]
print(list1)

c = list1 +[10, 11, 12]
print(c)

d = list1[2:5]
print(d)

list1.insert(2,14)
list1.insert(2,13)
print(list1)